Motor vehicle and engine control



1927.- Q Feb 22 A c. M. F. FRIDEN MOTOR VEHICLE AND ENGINE CONTROL iled April 30, 1925 ATTORNEYS.

Patented Feb. 22,1927; i i e i 1,518,5d

UNED lSTATES PATENT OFFICE..

CARL M. F. FRIDEN, or OAKLAND, CALFCRNIA.

MOTOR VEIIICLIE AND ENGINE CONTROL.

Application filed April 30, 1925. Serial No. 26,996.

, My invention relates to vehicles driven vation of the foot nedals, the direction in by internal combustion motors and having which the view is taken being indicated by running gear comprising a clutclr, interthe arrow in Fig. 1. posed between the engine and the driving In the drawings, no attempt has been 5 wheels, and equipped with suitable brakes. made to illustrate any elements of a motor 60 Motor vehicles of today, of the convenvehicle other than those to which my mechtlonal type described, are `provided with anism is directly applied, as constructional multi-cylinder, high compression engines, and details of modern vehicles are well known in normal operation of the vehicle the ento those versed inthe art. Thus a view of le gine is constantly consuming fuel regardthe engine, transmission, and brake mech-.65 less of whether the power Vproduced in the anism is omitted as being unnecesary and engine is being transmitted through the confusing. running gear to drive the vehicle or being In accordance with my invention, I prowasted whilethe vehicle is moving by its vide means operative by the depression of l5 Aown momentum or being brought to al stop the brake pedal, for interrupting the flow of 70 by means of the brakes, the combustible mixture through the inlet it is an object of my invention to so relate` manifold to the engine,y thus producing a the power demand on the engine t0 the Saving in fuel and rendering the engine non- Operation ofthe vehicle that the Yengine will operative to deliver power to the propeller fie consume fuel only whendriving power is re'- shaft ofthe vehicle. When thesupply of 75 qlnired to keep the vehicle in motion, and combustible mixture to the engine is intertia-t` the compression of theV motor, when notl rupted, the engine is driven by the propeldelivering driving power, may be employed ler shaft (when the vehicle is moving an with considerable effect as braking power to the clutch is in engagement) soV that the J5 retard the movement of the vehicle. engine constitutes a load on the propeller 80 Another, object of the invention is to pro-y shaft which tends to retard the movement vide means for obtaining this control of the v of the vehicle. Means are also provided for engine and vehicle, through operation of the rendering the means which interrupts the ordinary operating levers of the vehicle. iiow of the combustible mixture to the en- 'ac Another object is to so connect the congine inoperative to interrupt such flo-w when 85 trolling means to the operating levers of the clutch pedal is depressed, so that the apthe vehicle that no unusual manipulation of plication of the brake, when the clutch is disthe operating levers is required to kactivate engaged will not result in killing the enthe controlling means. gine. The means for interrupting the flow Another object is to provide a control` of combustible mixture to the engine prefer- 9o ling means of the character described that ably comprises a valve in the inlet manifold 'comprises but few parts,.is readily adaptbetween the carbureter andthe engine, 'able to any modern motor vehicle and is which valve controls a larger opening in the cheap in construction and positive in operainlet manifold, which when open establishes 4o tion. direct and free communication between the 95 rEhe' invention possesses other advantageinlet manifold and the external atmosphere, ous features, some of which with the forewhen the valve 'is moved to uncover. the going, will be set forth at length in the folopening, air flows directly into the manifold lowing description where I shall outline in above the carbureter, thus minimizing or full kthat form of my invention which l have vselected for illustration in the drawings acthrough the carbur-eter. The air introduced companying and forming part of the present into the engine tends to augment its natural specification. braking effect.

Referring to saidvdrawings: The numeral 2 indicates a portion of the Figure l is a view in side fragments of the cl tch and brakeV pedals of engine of a motor vehicle between the can. a motor vehicle and'of theV intake manifold bureter and the engine; The brake pedal is of the engine, illustratingv the assembled indicated by the numeral 3, the clutch pedal relation of my mechanism to these elements.r by the numeral 4, and the ocr boards of fliig. 2 is a fragmentaiy view in front elethe vehicle byV the numeral 6, The clutch, im

' substantially precluding the passage of air me A 'elevation of intake manifold of an internal Vcombustion 105 pedal l is secured to :1 .ei-huit 7 hywhich movement of the pedal is trunemiltml to on erntc the chitcli niehhzinisin, kind the `breite pednl 3 is secured to n bearing tube tl through which the ehn'lt projects. Movement of the brake peilzil is transmitted to the brake mechnnifhn thru n suitable connection such as indicated et 9. It will be understood that he broke mechanism is provided with the eoi'lvcntioiml spring; for returningl the parte to the inogpzcrntive position illustraltcd in the drnwinge, when preseure on the broke pedzil .is rclcnrfed.` v

The only alteration ott-hc elemente olf the vehicle which is necessaryin` applying my mechnnigm in", that n. section nlnet he 1removetl from the intiike amnilold ot the engine and the severed ends olf the umni'tohl lie secured in opposite enfle ot :1 vulve hohe4 ing ll. The vhlvc housinnr is provided with an opening l2 adapted to he nornnzlly closed by :1 `shutter or gatto ll :wronged in :i niet in the housing :uul'piroted on "o ehult ll. crank lever and pin lo :1re mounted on the shaft :ind n springr 1T is nrrznfiged between the nlve housingr und the pin vto resilicntlf-,iY retain the gate 123 in closed position.

yl`hc valve is adopted to be operated under certain conditions, by movement of the broke pedal hnnd zi lvelve operating rod 18, pivoted at one end to the pin 16, is provided fdr that purpose. i

Secured to the hrulre pcdul 3 nhlv :trinngfed between it und llie clutch pedhl beneath the lioor hoorde oi the vciiicle, i, fr latch plnte 19. The latch plate illuSl tinted is vertically disposed in a plane pnrnllel with the exis of the clutch Shaft 'i' nud broke pedzl beziring thbe S, `und mounted on the brake pedal by ineens of :in angular extension nr'm 2l und screws i The hitch plete ie :ulepte'fl to relensehli' engngi'e the free ond ol the 4valve rod A18, to open the vnlve when the hrulie pedal is depreisq'eil; y i

Fornletl `in the hitch plete in u narrow vertlzllly dispoSed slot 23 thru which ilse "i e end 'of the "vulve rod 18` adapted to p. the bottom lip 2l ot' the elet being; adapted toengnge u ratchet tooth lll on the rod. The tooth 2G is lornicd on the bottom ol the rod und is So dinprosed that when the rod iS reeling on the lip ill; :l` Might deprce'- sion of the binke `pedal will enger-e the lip with the tooth, and 'Further niovcment of thc I'Jcdl will he transmitted thru the rod to open the gute 13 of the vulve ll. lf, however, the rod is lifted in" the sslot to disengge the tooth from 'the lip' thepedul may be lfullji7 depri-Seed `without actuating the vulve :is the rod will pass thru the sletin the hitch plete. Oh the 'return of the latch plete to normal vertical position the lip ill will slide alone; the bottoni of the rod und zilongthe tapered fiot tace Q7 of the tooth 2b until 'the plete hun nln'iost reuehed its vertical position when the rodnnd tooth will drop into` position ngnin, to he engaged by the lip 2l on the next movement of the brake.

v rrjacleknife type spring :'28 is Secured to the front of the latch ple-te fthovc the Slot .23 ond is adapted to normally hold the rod down in the slot 23 with the tooth 2G ready forengagemcnt with the lip 2l.

lt will thus be seen that with the elements olniy device thus for described, in normal position, ns illnetrnited in the drawings, depression 'of the broke,pcdelwill filet move thensshcinted hitch platte against the tooth 2h taking up the gap necessary to insure their engagement. ,Further movement of the pedal while taking np the always present Slack in the brake mechanisntwill not thru the lutch plete und valve rod` to open the gratte valve ll, und complete.depression ,ot the pedal to actuele the brakes will 'fullyY open the valve. It follows thenthet zrisninll opening ol the vulve, ne `would be eli'eeted with slight depression of the pedal, may be need to ufdvuntnge when `the vehicle is consting on n slight grade, `Supplying; suliicient auxiliary nir to the combustion mixture be- :ingl drawn thru the intuire manifold trom the carburetor, to decrease the consumption oi? fuel.A Partiel or, full application ol the brakes however, will open the valve ,Quilt eiently to relieve the suction on the our,- hureter thus cutting off the supply ol fuel while scavenging the engine `with Ytool nir. Driving power is thus cut oil' and instead the engine will :ict as an effective broke, due to compression of the nir in,` the cylinders es the engine is driven thru the running,r geur from the driving, wheels.

It will he obvious that if the engine he disconnected from thedriving wheels b v operation of the clutch while the brake pedal ie depreneed :ind the gute valve liepen, the engine will innnedintelystop.L 'l`hiscondition would he highlj7 undesirable in the operation of the vehicle, and to revent such :m ell'ect l have provided the fo lowing' meeheniem :issociuted with that before described Mounted for vertical movement on :1 pjuide Q9 preferably Secured to the floor hoardst of the vehicle, is u com plntel. This plete may he urruugcd between the `clutch und breite pedals and comprises :i vertical eide $32, peipcndicnhu to the exis oit' the pedale, :in :1 rcuute lifting; faire 33 heut :it right slhg'lef; to the side 32 with the nrc lying in e pinne parallel tothe side, and :i guide cur iii/l oleo bent :it right :ingles to the side und verticali;y spnced from the :trennte lifting fece. .Holen nre provided in vertical alignment rein' ol the lifting face and in the enr -lfl, b v whichthe com `plate muy be mounted on the rod Q9. Nuts 3G, threadebly `seemed at the bottom of the rod, limitthe downward novo ment of the com plete, and a spring 37 arlll() llt) li-f) ranged on the rod and acting on the rear oty .adapted to project thru the slot 38. Movement of the clutch pedal will therefore cause the lug and pin 41 secured thereto to move in the direction of the arrow a and as the pin 41 projects thru the horizontal slot 38 in the cam plate, will lift the cam plate on its guide 29 against the compression of spring 37.V

This cam plate with its arcuate lifting face 38 is provided to change the arcuate movement of the clutch pedal when being depressed to release the clutch, to a vertical movement adap'ted thru the following mechanism to disable the connection of theV valve 11 with the brake pedal 3, thus allowing the brakes of the vehicle to be applied while the clutch is disengaged without danger of killing the engine. Slidably mounted on the rear of the latch piate in a guide lip 43 is a latch 42 limited in vertical movement by a headed guide pin 44 projecting thru a slot formed in the latch and secured in the back of the latch plate. The latch 42 at its upper end is provided with a curved portion 46 adapted to engage the under side of the free end of the valve rod 18 rojecting thru the slot 23 formed in the latc i plate. The opposite end of the latch rests against the arcuate lifting face 33 of the cam plate 31.

The arcuate lifting face 33 is concentric with the axis of the clutch and brake pedals, and is thus formedso that a fixed distance is maintained between the latch plate, with its latch 42, and the lifting face 83 of the camv plate, regardless of movement of the brake pedal to which the latch plate isiixed; un-

less the clutch pedal be depressed. When this occurs the cam plate will be lifted, correspondingly moving the latch and disengaging the tooth 26 ofthe valveV rod from the lip 24 of the latch plate. It will beY obvious that under all other conditions, the toothed rod 18 being pivoted to the gate pin 1G, will be held in engagement with the latch plate by the jack-knife spring 28 foi movemeut with the brake pedal and corresponding opening of the gate valve.

I claim:

l1. The combination with an internal com-` 'l he `Combination With-an internal cein-Y bustion engine driven vehicle provided with brakes, a carbureter and an inlet manifold, a valve in the inlet manifold controlling the flow of air through the carbureter and means operative by the application of the brakes vfor moving` the valve to interrupt the iow of air through the carbureter. y

The combination with an internal coinbustion engine driven vehicle provided with brakes, a carbureter and an inlet manifold, said manifold having an opening therein above the carbureter through which air may directly enter the manifold, the opening being of such size that when open suiiicient air directly enters the manifold to cause a noncombustible mixture to be introduced into the engine, a valve normally closing said opening and means connecting the valve and the brakes, whereby the application of the rakes moves the valve to uncover the opening.

4. The combination with aninternal coinbustion engine driven vehicle provided with brakes and with a clutch between the engine and the running gear and means for supplying a combustible mixture to the engine, of means operative by the application of the brakes for interrupting the iow ofthe mixture to the engine and means operated by the disengagement of the clutch for rendering said brake oaerated means inoperative.

5. The com ination with an internal coinbustion engine driven vehicle provided with bra-kes, a power transmission clutch and means for supplying a combustible mixture to the engine, a pedal for actuating said brakes, means operative by the depression of the pedal for interrupting the flow of the mixture to the engine, a pedal for actuating the clutch and means operated by the depression of the clutch pedal for diseno'aging the interrupting means from thel brake pedal.

i 6. The combination with an internal combustion engine driven vehicle provided with brakes, a pedal for operating said brakes, a'carbureter and an intake manifold having a lateral opening therein above the carbureter, of a valve normally closing said opening, and means connecting said valve with t-lie brake pedal whereby depression of the pedal moves the valve to uncover thc opening.

7. `ril`he combination with an internal couibustioii engine driven vehicle having a brake pedal and means for supplying: a

combustible mixture to the engine, ofmeans operative by the depression of the brake pedal for dilutingsaid mixture with air to lll) lill

a suliicient extenttorendei' it non-combusti- 'i7 iscA engine having an inlet manifold, a clutch interposed between the engine and the running gear, means for operating the clutch, a brake associated with the running gear, and means for operating the brake, of a valve in said inlet manifold, and means associated with the clutch operating means and the brake operating means whereby initiation of braking effort will ,cause actuation of the valve to starve the motor and initiation of operation of the clutch will cause the valve to close and render the means associated with the clutch and brake operating means inactive.

19. The combination with a vehicle having running gear, an internal combustion engine for driving the running gear, said engine having an inlet manifold and a carbureter associated with said manifold, a clutch interposed between the engine and the running gear, means for operating the clutch, a brake associated with the running gear, and means for operating the brake, of a valve interposed between the engine and the carbureter in the inlet manifold and means associated with the clutch and brake operating means whereby initiation of braking action will open said valve to render the carbureter inactive and initiation of operation of the clutch will close said valve and render the means associated with the clutch and brake operating means inoperative until clutch operation ceases.

20. rhe combination with a vehicle having running gear, an internal combustion engine for driving the running gear, said engine having an inlet manifold and a carbureter associated with said manifold, a clutch interposed between the engine and the running gear, means for operating the clutch, a brake associated with the running gear, and means for operating the brake, of a valve interposed between the engine and the carbureter in the inlet manifold, a spring for holding said valve normally closed, a toothed rod for opening said valve,

a plate mounted on the brake operatingmeans, resilient means for normally holding the toothed rod in engagement with the plate, a latch adapted to disengage said rod and plate and means operable in synchro-V nism with the clutch operating means for actuating said latch.

21. The combination with a vehicle having running gear, an internal combustion engine for driving Vthe running gear, said engine having an inlet manifold and acarbureter associated With said manifolch a clutch interposed between the engine and the running gear, means for operating the clutch, a brake associated with the running gear, and means for operating the brake, of a valve interposed between the engine and the carbureter in the inlet manifold, a spring for holding said valve normally closed, a toothed rod for opening said valve, a slotted plate having a lip mounted on the brake operating means and thru which the rod may pass, a spring on said plate for normally holdingsaid toothed rod in engagement with said lip, a latch mounted on said slotted plate and adapted to disengage said rod from said lip, a cam plate having an arcuate face adapted to engage said latch and adapted to move vertically on a guide, a slot in said cam plate perpendicular to said arcuate face and a pin mounted on the clutch operating means and engaged in said slot in said cam plate.

22. The combination with a motor driven vehicle, a brake for the tractive elements of said vehicle, and means operable upon the application of said brake to augment the natural braking effect of said motor.

23. The combination with a motor driven vehicle, a brake for the tractive elements of Vsaid vehicle, means operable upon the application of said brake to augment the natural braking e'ect of said motor, and means operable upon the disengagement of said motor from the tractive elements of the vehicle for rendering said first mentioned means inoperative.

24. The combination with a motor driven vehicle, of valve means for controlling the supply of fuel to said motor, means for manually controlling said valve means, a clutch operating member and means controlled by the movement of said member for rendering said manual controlling means inoperative.

25. rlhe combination with a motor vehicle, of valve. Ymeans for controlling the supply of fuel to said motor, .means for manually controlling said valve means, manually operable means for disengaging said motor from the tractive elements of said vehicle, and means controlled by themovement of said disengaging means for rendering said manual controlling means inoperable.

26. In Combination with a motor vehicle driven by an internal combustion engine, an intake manifold for said engine, a carburetor connected to said intake manifold, a relatively large `opening in said intake manifold between said carburetor and engine, valve means for regulatingthe passage of air thru said opening from the atmosphere, and manual operable means for controlling said valve whereby substantial quantities of air may be introduced into said intake to interrupt the flow of fuel from said carburetor and to augment the natural braking effect of said engine.

In testimony whereof, I have hereunto set my hand.

y CARL M. F. FRIDEN.

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